// Copyright (C) 2020 THL A29 Limited, a Tencent company. All rights reserved.
//
// Licensed under the BSD 3-Clause License (the "License"); you may not use this
// file except in compliance with the License. You may obtain a copy of the
// License at
//
// https://opensource.org/licenses/BSD-3-Clause
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations under
// the License.

#include "yadcc/client/cxx/libfakeroot.h"

#include <atomic>
#include <chrono>
#include <cstdlib>
#include <thread>

#include "gtest/gtest.h"

#include "yadcc/client/common/io.h"
#include "yadcc/client/cxx/libfakeroot/libfakeroot.h"

using namespace std::literals;

namespace yadcc::client {

void ExtractLibFakeRootTo(const std::string& path);

TEST(LibFakeRoot, ConcurrentExtraction) {
  setenv("HOME", ".", true);  // We don't want to run out test towards `$HOME`.
  std::thread ts[10];
  std::atomic<bool> done{};
  for (auto&& e : ts) {
    e = std::thread([&] {
      while (!done) {
        ExtractLibFakeRootTo("./libfakeroot.so");
        ASSERT_EQ(
            std::string_view(reinterpret_cast<const char*>(
                                 yadcc_client_cxx_libfakeroot_libfakeroot_so),
                             yadcc_client_cxx_libfakeroot_libfakeroot_so_len),
            ReadAll("./libfakeroot.so"));
      }
    });
  }

  std::this_thread::sleep_for(5s);
  done = true;
  for (auto&& e : ts) {
    e.join();
  }
}

}  // namespace yadcc::client
